551554465 has 32 divisors (see below), whose sum is σ = 831285504. Its totient is φ = 341283840.

The previous prime is 551554463. The next prime is 551554481. The reversal of 551554465 is 564455155.

It is not a de Polignac number, because 551554465 - 2¹ = 551554463 is a prime.

It is a super-2 number, since 2×551554465² = 608424655722872450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (551554463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47517 + ... + 57973.

It is an arithmetic number, because the mean of its divisors is an integer number (25977672).

Almost surely, 2^551554465 is an apocalyptic number.

551554465 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

551554465 is a deficient number, since it is larger than the sum of its proper divisors (279731039).

551554465 is a wasteful number, since it uses less digits than its factorization.

551554465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10617.

The product of its digits is 300000, while the sum is 40.

The square root of 551554465 is about 23485.1967204876. The cubic root of 551554465 is about 820.0924271188.

The spelling of 551554465 in words is "five hundred fifty-one million, five hundred fifty-four thousand, four hundred sixty-five".