53978951 has 8 divisors (see below), whose sum is σ = 58263744. Its totient is φ = 49713120.

The previous prime is 53978933. The next prime is 53978971. The reversal of 53978951 is 15987935.

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

It is a cyclic number.

It is not a de Polignac number, because 53978951 - 2⁶ = 53978887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53978896 and 53978905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53978921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1490 + ... + 10496.

It is an arithmetic number, because the mean of its divisors is an integer number (7282968).

Almost surely, 2^53978951 is an apocalyptic number.

53978951 is a deficient number, since it is larger than the sum of its proper divisors (4284793).

53978951 is a wasteful number, since it uses less digits than its factorization.

53978951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9481.

The product of its digits is 340200, while the sum is 47.

The square root of 53978951 is about 7347.0368857111. The cubic root of 53978951 is about 377.9271973301.

The spelling of 53978951 in words is "fifty-three million, nine hundred seventy-eight thousand, nine hundred fifty-one".