61953556 has 12 divisors (see below), whose sum is σ = 123907168. Its totient is φ = 26551512.

The previous prime is 61953539. The next prime is 61953557. The reversal of 61953556 is 65535916.

61953556 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61953557) 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, 1106286 + ... + 1106341.

Almost surely, 2^61953556 is an apocalyptic number.

It is an amenable number.

61953556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61953556 is a wasteful number, since it uses less digits than its factorization.

61953556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212638 (or 2212636 counting only the distinct ones).

The product of its digits is 121500, while the sum is 40.

The square root of 61953556 is about 7871.0581245472. The cubic root of 61953556 is about 395.6903081526.

The spelling of 61953556 in words is "sixty-one million, nine hundred fifty-three thousand, five hundred fifty-six".