61902953 has 8 divisors (see below), whose sum is σ = 71396160. Its totient is φ = 52572240.

The previous prime is 61902947. The next prime is 61903003. The reversal of 61902953 is 35920916.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61902953 - 2⁴ = 61902937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61902943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39803 + ... + 41328.

It is an arithmetic number, because the mean of its divisors is an integer number (8924520).

Almost surely, 2^61902953 is an apocalyptic number.

It is an amenable number.

61902953 is a deficient number, since it is larger than the sum of its proper divisors (9493207).

61902953 is a wasteful number, since it uses less digits than its factorization.

61902953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81247.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 61902953 is about 7867.8429699632. The cubic root of 61902953 is about 395.5825469414.

The spelling of 61902953 in words is "sixty-one million, nine hundred two thousand, nine hundred fifty-three".