55620262 has 8 divisors (see below), whose sum is σ = 86121792. Its totient is φ = 26913000.

The previous prime is 55620203. The next prime is 55620263. The reversal of 55620262 is 26202655.

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

It is a super-2 number, since 2×55620262² = 6187227089897288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55620262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55620263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448489 + ... + 448612.

It is an arithmetic number, because the mean of its divisors is an integer number (10765224).

Almost surely, 2^55620262 is an apocalyptic number.

55620262 is a deficient number, since it is larger than the sum of its proper divisors (30501530).

55620262 is a wasteful number, since it uses less digits than its factorization.

55620262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897134.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 55620262 is about 7457.8993020823. The cubic root of 55620262 is about 381.7194974847.

The spelling of 55620262 in words is "fifty-five million, six hundred twenty thousand, two hundred sixty-two".