53402970 has 16 divisors (see below), whose sum is σ = 128167200. Its totient is φ = 14240784.

The previous prime is 53402969. The next prime is 53402971. The reversal of 53402970 is 7920435.

It is an interprime number because it is at equal distance from previous prime (53402969) and next prime (53402971).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1780099 = 53402970 / (5 + 3 + 4 + 0 + 2 + 9 + 7 + 0).

It is not an unprimeable number, because it can be changed into a prime (53402971) 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, 890020 + ... + 890079.

It is an arithmetic number, because the mean of its divisors is an integer number (8010450).

Almost surely, 2^53402970 is an apocalyptic number.

53402970 is an abundant number, since it is smaller than the sum of its proper divisors (74764230).

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

53402970 is a wasteful number, since it uses less digits than its factorization.

53402970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780109.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 53402970 is about 7307.7335747823. The cubic root of 53402970 is about 376.5781668327.

The spelling of 53402970 in words is "fifty-three million, four hundred two thousand, nine hundred seventy".