61624523252 has 12 divisors (see below), whose sum is σ = 114186616740. Its totient is φ = 28999775616.

The previous prime is 61624523251. The next prime is 61624523263. The reversal of 61624523252 is 25232542616.

It can be written as a sum of positive squares in 2 ways, for example, as 51581677456 + 10042845796 = 227116^2 + 100214^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61624523251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453121427 + ... + 453121562.

It is an arithmetic number, because the mean of its divisors is an integer number (9515551395).

Almost surely, 2^61624523252 is an apocalyptic number.

It is an amenable number.

61624523252 is a deficient number, since it is larger than the sum of its proper divisors (52562093488).

61624523252 is a wasteful number, since it uses less digits than its factorization.

61624523252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906243010 (or 906243008 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

The spelling of 61624523252 in words is "sixty-one billion, six hundred twenty-four million, five hundred twenty-three thousand, two hundred fifty-two".