61269250 has 64 divisors (see below), whose sum is σ = 132507648. Its totient is φ = 20779200.

The previous prime is 61269233. The next prime is 61269251. The reversal of 61269250 is 5296216.

It is not an unprimeable number, because it can be changed into a prime (61269251) 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, 274639 + ... + 274861.

It is an arithmetic number, because the mean of its divisors is an integer number (2070432).

Almost surely, 2^61269250 is an apocalyptic number.

61269250 is an abundant number, since it is smaller than the sum of its proper divisors (71238398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61269250 is a wasteful number, since it uses less digits than its factorization.

61269250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 61269250 is about 7827.4676620220. The cubic root of 61269250 is about 394.2280495854.

It can be divided in two parts, 6126 and 9250, that added together give a square (15376 = 124²).

The spelling of 61269250 in words is "sixty-one million, two hundred sixty-nine thousand, two hundred fifty".