2420625211521 has 16 divisors (see below), whose sum is σ = 3524550509568. Its totient is φ = 1465528453200.

The previous prime is 2420625211507. The next prime is 2420625211541. The reversal of 2420625211521 is 1251125260242.

It is not a de Polignac number, because 2420625211521 - 2⁵ = 2420625211489 is a prime.

It is a super-2 number, since 2×2420625211521² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2420625211541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37895845 + ... + 37959666.

It is an arithmetic number, because the mean of its divisors is an integer number (220284406848).

Almost surely, 2^{2420625211521} is an apocalyptic number.

It is an amenable number.

2420625211521 is a deficient number, since it is larger than the sum of its proper divisors (1103925298047).

2420625211521 is a wasteful number, since it uses less digits than its factorization.

2420625211521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75856492.

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 2420625211521 in words is "two trillion, four hundred twenty billion, six hundred twenty-five million, two hundred eleven thousand, five hundred twenty-one".