61954025 has 12 divisors (see below), whose sum is σ = 87797952. Its totient is φ = 42482640.

The previous prime is 61953989. The next prime is 61954033. The reversal of 61954025 is 52045916.

It is a happy number.

It is not a de Polignac number, because 61954025 - 2¹⁴ = 61937641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61953982 and 61954000.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176837 + ... + 177186.

It is an arithmetic number, because the mean of its divisors is an integer number (7316496).

Almost surely, 2^61954025 is an apocalyptic number.

It is an amenable number.

61954025 is a deficient number, since it is larger than the sum of its proper divisors (25843927).

61954025 is a wasteful number, since it uses less digits than its factorization.

61954025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354040 (or 354035 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 61954025 is about 7871.0879171815. The cubic root of 61954025 is about 395.6913066333.

The spelling of 61954025 in words is "sixty-one million, nine hundred fifty-four thousand, twenty-five".