61573254 has 64 divisors (see below), whose sum is σ = 136581120. Its totient is φ = 18437760.

The previous prime is 61573249. The next prime is 61573261. The reversal of 61573254 is 45237516.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158092 + ... + 158480.

It is an arithmetic number, because the mean of its divisors is an integer number (2134080).

Almost surely, 2^61573254 is an apocalyptic number.

61573254 is an abundant number, since it is smaller than the sum of its proper divisors (75007866).

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

61573254 is a wasteful number, since it uses less digits than its factorization.

61573254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485.

The product of its digits is 25200, while the sum is 33.

The square root of 61573254 is about 7846.8626851755. The cubic root of 61573254 is about 394.8789972791.

The spelling of 61573254 in words is "sixty-one million, five hundred seventy-three thousand, two hundred fifty-four".