61522055625684 has 48 divisors (see below), whose sum is σ = 144870597748800. Its totient is φ = 20318909654016.

The previous prime is 61522055625683. The next prime is 61522055625697. The reversal of 61522055625684 is 48652655022516.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61522055625683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98596027 + ... + 99218045.

It is an arithmetic number, because the mean of its divisors is an integer number (3018137453100).

Almost surely, 2^{61522055625684} is an apocalyptic number.

It is an amenable number.

61522055625684 is an abundant number, since it is smaller than the sum of its proper divisors (83348542123116).

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

61522055625684 is a wasteful number, since it uses less digits than its factorization.

61522055625684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697752 (or 697750 counting only the distinct ones).

The product of its (nonzero) digits is 34560000, while the sum is 57.

The spelling of 61522055625684 in words is "sixty-one trillion, five hundred twenty-two billion, fifty-five million, six hundred twenty-five thousand, six hundred eighty-four".