53351478 has 12 divisors (see below), whose sum is σ = 115594908. Its totient is φ = 17783820.

The previous prime is 53351477. The next prime is 53351479. The reversal of 53351478 is 87415335.

53351478 is a `hidden beast` number, since 533 + 51 + 4 + 78 = 666.

It is an interprime number because it is at equal distance from previous prime (53351477) and next prime (53351479).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53351477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1481968 + ... + 1482003.

It is an arithmetic number, because the mean of its divisors is an integer number (9632909).

Almost surely, 2^53351478 is an apocalyptic number.

53351478 is an abundant number, since it is smaller than the sum of its proper divisors (62243430).

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

53351478 is a wasteful number, since it uses less digits than its factorization.

53351478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2963979 (or 2963976 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 53351478 is about 7304.2096081643. The cubic root of 53351478 is about 376.4570936751.

The spelling of 53351478 in words is "fifty-three million, three hundred fifty-one thousand, four hundred seventy-eight".